#ifndef _TIMER_H
#define _TIMER_H

#include "sys.h"
#include "usart2.h"
#include "stm32f10x_tim.h"

#define TIM4_EN 1

#if TIM4_EN
void TIM4_Set(u8 sta);
void TIM4_Init(u16 arr,u16 psc);
#endif

#endif
